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4,4'-Oxydiphthalic anhydride

Product Name 4,4'-Oxydiphthalic anhydride

CAS1823-59-2

MFC16H6O7

MW310.21

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  • Mass

    MS-IW-4947          
    4,4'-oxydiphthalic dianhydride
    C16H6O7             (Mass of molecular ion:    310)
    

       Source Temperature: 170 °C
       Sample Temperature: 220 °C
       Direct, 75 eV
    

          18.0       3.3
          28.0       1.9
          37.0       1.0
          44.0       1.2
          50.0       1.0
          53.0       1.0
          61.0       1.3
          62.0       4.9
          63.0      10.4
          69.0       4.4
          73.0       1.1
          74.0      10.7
          75.0      25.3
          76.0       1.8
          83.0       2.6
          86.0       1.3
          87.0       1.5
          88.0       2.1
         103.0       2.0
         111.0      10.5
         111.5       1.5
         112.0       1.5
         137.0       5.6
         138.0       2.2
         166.0      16.3
         167.0       2.1
         194.0      40.6
         195.0       5.8
         238.0      13.0
         239.0       1.9
         266.0     100.0
         267.0      16.5
         268.0       2.4
         310.0      52.5
         311.0       9.2
         312.0       1.5
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C16 H6 O7 0.037 g : 0.5 ml DMSO-d6
    4,4'-oxydiphthalic dianhydride
    ChemicalStructure
        Assign.     Shift(ppm)
    A 8.194 B 7.775 C 7.745

         Hz     ppm     Int.
    

       3279.54   8.207    727
       3279.17   8.206    721
       3276.12   8.198     48
       3275.02   8.195     51
       3271.36   8.186    796
       3270.87   8.185    793
       3108.28   7.778    765
       3106.57   7.774   1000
       3103.03   7.765     84
       3100.22   7.758    728
       3097.90   7.752    456
       3091.92   7.737    618
       3089.72   7.732    479
    

in DMSO-d6



KBr disc



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